What is the printing process for circular colored copperplate labels?

The printing process of circular colored copperplate labels usually involves multiple steps and links. The following is a detailed analysis of its printing process:

1、 Preparation before printing

Design: Based on customer requirements, use design software (such as Adobe Illustrator, Photoshop, etc.) for label design, including elements such as size, color, pattern, and text.

Review: Review the design draft to ensure its accuracy and compliance with client requirements.

Plate making: Producing a printing plate based on the design draft is a crucial step in the printing process, and the quality of the printing plate directly affects the printing effect.

2、 Printing process

Material selection: Choose high-quality copperplate paper as the label material. Copperplate paper has the characteristics of smooth surface, delicate texture, and bright colors, making it suitable for printing high-quality labels.

Printing methods: Common printing methods include flat press printing, circular press printing, and circular press printing. For circular colored copperplate labels, circular pressure printing is usually used due to its good printing quality and high production efficiency.

Flat press printing: suitable for printing small area, simple graphic and textual adhesive labels, with fast speed and high efficiency.

Round press printing: suitable for printing adhesive labels with solid and ordinary colors, with slow speed and printing quality between flat press and round press printing methods.

Circular pressure printing: Suitable for printing various types of graphic and textual adhesive labels, it is currently the most advanced method of adhesive label printing.

Ink selection: Choose the appropriate ink for printing based on the purpose and color requirements of the label. Commonly used inks include resin based inks, water-based inks, and UV inks. UV ink has been widely used in circular color copperplate label printing due to its advantages of fast curing, bright colors, and good wear resistance.

Printing adjustment: During the printing process, it is necessary to continuously adjust the printing machine to ensure printing quality. This includes adjusting parameters such as printing pressure, ink viscosity, printing speed, etc.

3、 Post printing processing

Drying: After printing is completed, the label needs to be dried to ensure that the ink is completely cured. For labels printed with UV ink, UV curing equipment is usually used for drying.

Film coating: In order to improve the wear resistance, waterproofing, and glossiness of the label, it is usually treated with film coating. Film covering materials include glossy film and calendered film, etc. Choose the appropriate film covering material according to customer needs.

Die cutting: Use a die-cutting machine to die cut the label into the desired circular shape. During the die-cutting process, attention should be paid to accuracy and speed to ensure that the shape and size of the label meet the requirements.

Waste disposal: Remove the waste around the label after die-cutting, making the label an independent entity for subsequent use and pasting.

Quality inspection: Conduct quality checks on printed labels to ensure that the printing quality of each label meets customer requirements. The inspection includes color, pattern, text clarity, etc.

Packaging: Pack the labels that have passed quality inspection for transportation and storage. The packaging method depends on customer needs and can be roll type, single sheet type, etc.

In summary, the printing process of circular colored copperplate labels involves multiple stages and steps, requiring strict control of the quality and technical parameters of each stage to ensure the quality and performance of the final product.